A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Magnesia-chrome brick and preparation method thereof
The invention relates to the technical field of magnesite-chrome brick preparation, in particular to a magnesite-chrome brick and a preparation method thereof.The preparation method comprises the following steps that magnesium oxide, chromic oxide, zirconium silicate, carbon nanotubes and an antioxidant additive are mixed; an organic binder is added into the mixture, polyvinyl alcohol or polyacrylamide is selected as the organic binder, and the mixture is evenly stirred at a high speed; adding nanoscale titanate into the uniformly mixed mixture as a dispersing agent so as to prevent agglomeration among particles in a high-temperature sintering process; pressing the mixture into a brick shape under a vacuum condition; after compression molding, drying treatment is carried out; and sintering the dried brick at high temperature. According to the invention, the microstructure of the magnesite-chrome brick is effectively optimized, the high temperature resistance and oxidation resistance of the magnesite-chrome brick are further improved, bubbles and impurities in the mixture are successfully removed, and the density and mechanical properties of the brick body are improved.
本发明涉及镁铬砖制备技术领域，具体涉及一种镁铬砖及其制备方法，包括以下步骤：将氧化镁、氧化铬、硅酸锆、碳纳米管和抗氧化助剂进行混合；向混合物中添加有机粘结剂，有机粘结剂选用为聚乙烯醇或聚丙烯酰胺，并经过高速搅拌均匀；在混合均匀的混合物中加入纳米级钛酸酯作为分散剂，以防止高温烧结过程中粒子间的团聚；将上述混合物在真空条件下被压制成砖块形状；压制成型后，进行干燥处理；干燥后的砖块经过高温烧结得到。本发明，有效优化了镁铬砖的微观结构，进一步提高了其耐高温和抗氧化性能，成功地去除了混合物中的气泡和杂质，提高了砖体的密度和机械性能。
Magnesia-chrome brick and preparation method thereof
The invention relates to the technical field of magnesite-chrome brick preparation, in particular to a magnesite-chrome brick and a preparation method thereof.The preparation method comprises the following steps that magnesium oxide, chromic oxide, zirconium silicate, carbon nanotubes and an antioxidant additive are mixed; an organic binder is added into the mixture, polyvinyl alcohol or polyacrylamide is selected as the organic binder, and the mixture is evenly stirred at a high speed; adding nanoscale titanate into the uniformly mixed mixture as a dispersing agent so as to prevent agglomeration among particles in a high-temperature sintering process; pressing the mixture into a brick shape under a vacuum condition; after compression molding, drying treatment is carried out; and sintering the dried brick at high temperature. According to the invention, the microstructure of the magnesite-chrome brick is effectively optimized, the high temperature resistance and oxidation resistance of the magnesite-chrome brick are further improved, bubbles and impurities in the mixture are successfully removed, and the density and mechanical properties of the brick body are improved.
本发明涉及镁铬砖制备技术领域，具体涉及一种镁铬砖及其制备方法，包括以下步骤：将氧化镁、氧化铬、硅酸锆、碳纳米管和抗氧化助剂进行混合；向混合物中添加有机粘结剂，有机粘结剂选用为聚乙烯醇或聚丙烯酰胺，并经过高速搅拌均匀；在混合均匀的混合物中加入纳米级钛酸酯作为分散剂，以防止高温烧结过程中粒子间的团聚；将上述混合物在真空条件下被压制成砖块形状；压制成型后，进行干燥处理；干燥后的砖块经过高温烧结得到。本发明，有效优化了镁铬砖的微观结构，进一步提高了其耐高温和抗氧化性能，成功地去除了混合物中的气泡和杂质，提高了砖体的密度和机械性能。
Magnesia-chrome brick and preparation method thereof
一种镁铬砖及其制备方法
ZHANG YIXIAN (author) / ZHAO XIANHUA (author) / LI CHANGJIANG (author) / MA JIALIANG (author) / JIN ZHAO (author)
2024-03-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME